Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / Documentation / devicetree / bindings / rtc / xgene-rtc.txt

diff --git a/kernel/Documentation/devicetree/bindings/rtc/xgene-rtc.txt b/kernel/Documentation/devicetree/bindings/rtc/xgene-rtc.txt
new file mode 100644 (file)
index 0000000..fd195c3
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/rtc/xgene-rtc.txt
@@ -0,0 +1,28 @@
+* APM X-Gene Real Time Clock
+
+RTC controller for the APM X-Gene Real Time Clock
+
+Required properties:
+- compatible : Should be "apm,xgene-rtc"
+- reg: physical base address of the controller and length of memory mapped
+  region.
+- interrupts: IRQ line for the RTC.
+- #clock-cells: Should be 1.
+- clocks: Reference to the clock entry.
+
+Example:
+
+rtcclk: rtcclk {
+       compatible = "fixed-clock";
+       #clock-cells = <1>;
+       clock-frequency = <100000000>;
+       clock-output-names = "rtcclk";
+};
+
+rtc: rtc@10510000 {
+       compatible = "apm,xgene-rtc";
+       reg = <0x0 0x10510000 0x0 0x400>;
+       interrupts = <0x0 0x46 0x4>;
+       #clock-cells = <1>;
+       clocks = <&rtcclk 0>;
+};